Portable air conditioner condensate handling assembly

ABSTRACT

A condensate overflow handling apparatus having a condensate drain reservoir housing positioned at a first elevation. The reservoir housing has an inlet that is adapted to be fluidly connected to at least one drain pan of an air cooling appliance positioned at a second elevation above the reservoir housing. A fluid level sensor is mounted to the reservoir housing for sensing a fluid level within the reservoir housing which activates a pump to pump fluid from the reservoir housing through an exit conduit into a discharge assembly. The discharge assembly comprises at least one discharge hose and a stepped expansion fitting mounted to the at least one discharge hose.

RELATED APPLICATIONS

There are no related patent applications.

STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

Not applicable.

REFERENCE TO SEQUENCE LISTING, A TABLE OR A COMPUTER PROGRAM LISTING COMPACT DISC APPENDIX

None.

BACKGROUND OF THE INVENTION 1. Field of Invention

The present invention relates to a condensate overflow handling apparatus for use with a portable air conditioning device, heat pump or dehumidifier and includes a kit providing a condensate overflow assembly which can be attached to a preexisting condensate pan or pans on an air conditioning device, heat pump or dehumidifier to discharge condensate to a remote location.

2. Description of the Prior Art

An air cooling appliance such as a portable air conditioner, heat pump or dehumidifier is generally provided with heat exchange coils that produce condensate taken from the surrounding atmosphere. This condensate collects in a drain pan or pans of the appliance as the device cools the air in the room or space around the device. Condensate in the form of water drops are formed on the surface of an evaporator during heat exchange between the room air and the refrigerant at the evaporator because the surface temperature of the evaporator is very low compared to the room temperature with the evaporator cooling down the room air in contact with the evaporator below the dew point of the air. In humid conditions, the appliance drain pan must be regularly removed and drained as water in excess of a gallon a day may be generated in areas having moderate to high humidity. Prior art cooling devices require constant maintenance and checking to make sure that the drain pan does not overflow causing damage to the dry walls, the wood framing, floors and the ceilings beneath the floors of the building in addition to the carpeting, tiling and furniture. Sometimes in the case of condensate spillage, water may go unnoticed for days. As will be appreciated, the overflowing water may cause considerable property damage or cause an electrical short. Furthermore, when the drain pan of the appliance is connected to a pump and drain line for removing the collected liquid and depositing the same in a sump pump or outside the building, blockage can occur in the drain line and in winter the outside connection to the drain line can freeze causing the drain line to crack or break allowing water held therein or pumped there through to pour into the base structure causing damage and a buildup of mold and potentially harmful biological organisms.

Many attempts have been used or suggested to solve the aforenoted problems and the prior art has attempted to solve these problems in a number of different ways.

U.S. Pat. No. 5,069,042 issued Dec. 3, 1991 discloses a condensate trap that includes a mechanical switch and a float. When the condensate accumulates in the trap due to a blockage in the discharge line, the float rises with the rising level of the condensate. At a set liquid level height point, the float activates a mechanical switch to shut off the air cooling system to prevent further condensate from being produced.

U.S. Pat. No. 5,522,229 issued Jun. 4, 1996 discloses a drain tube that includes an inlet end for attaching to a drain pan, and an outlet end for transporting condensate out of the drain pan. The drain tube includes a sensor probe that extends from the drain tube inlet end and into the drain pan when attached to the drain pan. The sensor probe detects excess condensate in the drain pan due to a blockage. When the excess condensate is detected, the sensor probe triggers a control circuit that generates an output signal to sound an alarm and/or turn off the air cooling system.

U.S. Pat. No. 6,976,367 issued Dec. 20, 2005 discloses a condensate overflow prevention assembly for an air cooling system using a fluid level sensor and a pump activated by the fluid level sensor to pump the condensate away from a drainage system when a blockage occurs in the drainage system.

There is a need for a means to extract condensate (water) from small portable air conditioners, dehumidifiers and heat pumps that are used to regulate temperature or humidity in small indoor areas. There are presently no condensate pump assemblies designed to deal with the special demands encountered by these small units placed in the odd environments that they are commonly utilized in.

The teachings of the prior art do not aid in the resolution of a number of practical difficulties that are resolved by the present invention. Furthermore, the prior art did not contemplate portable air conditioners which can be wheeled around to various areas of the structure being cooled. Therefore, there is a need for an assembly that will prevent condensate overflows and can be economically installed. There is also a need for the exterior drain lines leading to the outside be constructed to prevent the line from freezing.

Therefore, the present condensate collection and disposal assembly allows the use of a local space cooling air conditioner or a small sized portable air conditioner which is convenient and simple in installation and utility.

SUMMARY OF THE INVENTION

Many of the above described prior art devices switch off the air cooling system and/or activate an alarm when a condensate level in the drain pan rises due to a blockage in the drain line or the drain pan. However, simple notice of a product problem does not prevent the air cooling device from producing additional condensate and eventually the rising condensate will overflow from the drain pan causing water damage.

The present invention provides an advantage in that the inventive assembly can be sold as an accompanying kit for a new air conditioner unit, heat pump or dehumidifier. Another advantage includes the capability of installing the inventive assembly with previously installed existing air conditioner units.

It is an object of the invention to provide an assembly for disposing of condensate from a small sized portable air conditioner, humidifier or the like allowing the air conditioner or humidifier to be easily installed and moved to desired locations.

It is another object of the invention to provide an assembly connected to the drain pan of the air treating unit which directs condensate generated by the air treating unit into a pump reservoir and discharges the same away from the inside of the building.

It is still another object of the invention to provide a condensate discharge assembly for air treating units which can be connected to any shape or height reservoir that the air treating unit is provided with and still be able to function.

The inventive condensate discharge assembly includes drainage and disposal lines, a tee connector connecting same, a pump, a condensate reservoir, formed rigid window insulation blocks and flexible insulation strips and a stepped expander pipe.

These and other objects, advantages, and novel features of the present invention will become apparent when considered with the teachings contained in the detailed disclosure along with the accompanying drawings herein.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be described with reference to the appended Figures. Further objects and advantages of the invention will become apparent from the following detailed description and the accompanying drawings forming a part thereof in which like reference characters designate like parts throughout the views and wherein:

FIG. 1 is a schematic view of the inventive condensate overflow disposal assembly;

FIG. 2 is a schematic view of another embodiment of the inventive condensate overflow disposal assembly;

FIG. 3 is an isolated enlarged plan view of the tee connector, attached hoses and a window block;

FIG. 4 is an enlarged perspective view of a discharge expansion fitting used in the invention;

FIG. 5 is a side perspective view of a cylindrical insulation wrap for the discharge conduit or hose and a side perspective view of a protective cover for the cylindrical insulation wrap;

FIG. 6 is an enlarged end elevation view of the cylindrical insulation wrap of FIG. 5;

FIG. 7 is an exploded view of the window insulation assembly for holding the discharge assembly in place;

FIG. 8 is an isolated perspective view of the exit member for the discharge assembly used with the window insulation assembly of FIG. 7;

FIG. 9 is a schematic view of the assembled window insulation of FIGS. 7 and 8 mounted in a window frame;

FIG. 10 is an enlarged perspective view of an inlet fitting in the pump housing which holds the pan drain hoses; and

FIG. 11 is a perspective view of the window insulation assembly with slotted blocks forming a channel for an expandable rod.

DETAILED DESCRIPTION OF THE INVENTION

The preferred embodiments and best mode of the invention is shown in FIGS. 1-11. While the invention is described in connection with certain preferred embodiments, it is not intended that the present invention be so limited. On the contrary, it is intended to cover all alternatives, modifications, and equivalent arrangements as may be included within the spirit and scope of the invention as defined by the appended claims.

The present invention is directed toward a condensate overflow prevention apparatus or kit for attachment to an air conditioner appliance, heat pump, humidifier or the like to prevent condensate overflow from the appliance and drainage discharge line freezing.

FIG. 1 illustrates an air conditioner appliance 20 having a condensate handling assembly 30 fluidly connected to it. The air conditioner appliance 20 is preferably a portable air conditioner, heat pump or dehumidifier. The air conditioner appliance 20 is standard and known in the art and includes an air handler which draws in air from the room being cooled, circulates and cools a coolant passing through the air conditioner. The air conditioner contains heat exchange coils which circulate and cool a coolant allowing air passing through the air conditioner 20 to be cooled. Ambient air is conveyed by an internal fan to the air handler of the air conditioner through an inlet duct. The air is cooled as it makes contact with the heat exchange coils with the now cooled air being transported away from the air handler through an outlet duct. When the air is cooled in the air conditioner, moisture in the air condenses on the heat exchange coils as liquid droplets or condensate and falls into and is collected by an upper drain pan or reservoir (not shown) having an outlet 26 and a lower drain pan or reservoir (not shown) having an outlet 28 in the air conditioner housing. Each drain pan in the appliance is generally provided with a drain fitting for draining the accumulated fluid resulting from the operation of the appliance. The present invention is directed to be used with appliances having one or multiple drain pans.

The condensate handling apparatus 30, as shown in FIG. 1, is provided with an upper hose or line 32 which is mounted to the upper outlet fitting 26 of the upper drain pan with the distal end 33 of the hose 32 being mounted to an inlet or fitting 41 of a collection housing reservoir 50 and condensate pump 60.

The terms hose, line and conduit are used interchangeably throughout this specification and refer to the same numbered part.

It should be noted that the hoses, lines or conduits noted above are flexible and can be constructed of clear plastic, opaque plastic, rubber or other suitable material.

Some units that function as an air conditioner use a method to re-evaporate water using the hot coil and then direct the hot humid air out the window or to an associated duct. This system works until conditions become unfavorable (mostly due to high humidity) at which point, the air conditioner cannot keep up with the water that is accumulating and the unit will shut off or overflow. To prevent this from happening, the upper hose 32 is additionally formed with a pee trap 34 which holds air pressure around the upper coil and allows the condensate to run down to the condensate collector housing reservoir 50. A second lower drainage hose or line 36 is mounted to the lower outlet fitting 28 of the lower drain pan with the distal end 38 of hose 36 being mounted into an inlet or fitting 39 of the condensate collection housing container 50. The outlet fitting 39 is shown in FIG. 10. This provides a flow-down reservoir from the main air cooling appliance which allows for any shape or height reservoir that the main air cooling appliance is provided with and still be able to function. The housing 50 preferably forms a sealed hollow container with hose ends 33 and 38 being positioned above the planar floor 51 of housing 50. An open housing will capture lint, dirt and other materials which can lead to stoppage of the pump 60 and/or clogging of the fittings and hoses. The housing 50 additionally contains a condensate discharge pump 60 which is mounted in the housing 50 and which is activated by a sensor (not shown) which senses the water level in the housing 50 and activates the pump 60 when the water reaches a predetermined level. The pump 60 is preferably a diaphragm pump. A discharge hose 42 is mounted to the housing and contains a one way check valve 44 which keeps the discharge water being pumped through hose or line 42 from flowing back into the pump housing 60 when the pump stops or is shut off. The distal end 43 of discharge hose 42 is mounted to one end 64 of a tee connector 62 with the opposite end 65 of the tee connector 62 holding a discharge assembly 70. The discharge assembly has a connector hose 72 mounted to tee connector end 65 with the distal end of hose 72 being mounted to a reversed reduction fitting 77. The reverse reduction or expansion fitting 77 is shown in FIG. 4. This fitting is mounted in reverse orientation so that discharged water goes from a stepped smaller diameter chamber to a stepped larger diameter chamber so that there is no water build up. The tee connector 62 and associated hoses is shown in greater detail in FIG. 3. The surface tension of the water inside of the hose 72 if the hose is level or directed downward toward the ground will be significantly reduced because the larger diameter section 78 of expansion fitting 77 will always have enough air to prevent water from being held inside it. Fitting 77 is in actuality an expansion fitting. This prevents water from freezing inside the hose 72 when the unit is used in freezing temperatures. If desired, a stop cock can be mounted to the distal end 74 of fitting 77 to seal the hose 72 from communication with the outside.

A second bypass hose or line 46 has its distal end 47 mounted to the perpendicular stem 67 of the tee connector 62 and its proximal end 48 is mounted in condensate pump housing 50. The design of the system is thus able to expel water outside of a building or resident without water freezing in a hose or piping system between cycles (in the heat pump or dehumidifier mode). As water is pumped out by the condensate pump 60, it will have substantial momentum. The water will go straight to the outside through hose 72 and fitting 77 and reduce air pressure in hose 46. When the pump 60 stops, check valve 44 will make all water momentum in line or hose 42 stop up to the tee connector 62. The water flowing past the tee connector 62 will continue as it has momentum and air will come from line or hose 46 thus evacuating hose 72 that connects to tee connector end 65 and discharge assembly 70.

The discharge assembly 70 has a flexible conduit or hose 72 with expansion fitting 77 mounted thereto which are wrapped or covered with a cylindrical insulation member 74 which is covered by a fibrous plastic protection cover 76 as is shown in FIGS. 5 and 6 to form an insulation sleeve for hose 72 and expansion fitting 77. An exit hose can optionally be mounted to the downstream end of expansion fitting 77. FIG. 6 is an enlarged end view of the cylindrical insulation member 74 which contains a zip tie 75 which is used to secure the insulation member 74 to the discharge conduit 72 or expansion fitting 77. This discharge assembly 70 is mounted in a flexible waterproof foam block window assembly 80 as is shown in FIG. 9 and will be described in more detail later. It is understood that the insulation can take any desired form such as rolled insulation which is wrapped around the discharge assembly.

FIG. 2 is a slightly modified embodiment of the present invention in which the air conditioning appliance 120 is provided with an upper hose or line 132 which is mounted to the upper outlet fitting 126 of an upper drain pan of the appliance 120 with the distal end 133 of the hose 132 being mounted to a float switch housing 150 for a condensate pump 160. The condensate pump 160 is fluidly connected to the float switch housing 150 by a hose or conduit or line 155. The hose 155 functions as a suction hose between the float switch housing 150 and pump 160. The float switch (not shown) which is mounted in float housing 150 activates the condensate pump 160 via wiring 153 when the water level reaches a predetermined level in the float switch housing 150. The upper hose 132 is formed with a pee trap 134 which functions in the same manner as previously discussed in the embodiment of FIG. 1. A second lower drainage hose or line 136 is mounted to the lower outlet fitting 128 of the lower drain pan of the air conditioning appliance with the distal end 138 of the drainage hose 136 being mounted to the float switch housing 150. The housing 150 forms a sealed hollow container with hose ends 133 and 138 being positioned above the floor 151 of the float switch housing 150. The float switch housing 150 acts as a discharge reservoir for the condensate drain water from appliance 120. A discharge hose 142 is mounted to the condensate pump 160 to carry the condensate pumped out of the float valve housing 150. The distal end 143 of discharge hose 142 is mounted to one end of a discharge conduit or hose 172 mounted to a discharge assembly 170 having a reversed reduction or expansion fitting 177 as shown in FIG. 4 so that discharged water goes from a stepped smaller diameter chamber to a larger diameter chamber in the expansion fitting 177. The surface tension of the water inside of the discharge assembly 170 if it is level or directed downward because the larger diameter section will always provided with enough air to prevent water from remaining inside it. This will prevent water from freezing inside the hose when the unit is used in freezing temperatures.

The discharge assembly 170 has a flexible conduit or hose member 172 and reversed expansion fitting 177 which is wrapped or covered by a cylindrical insulation member 174 which is covered by a fibrous plastic protection cover 176 as is shown in FIG. 5 to form an insulation sleeve. Another hose member can optimally be mounted on the distal end of the expansion fitting 177. It is important that hose 172 and any addition discharge hose member have a diameter that is large enough that it does not have a straw effect (a phenomena that can be experienced when a straw has liquid in it, and the top is plugged, then a liquid is held up inside of the straw with the assistance of surface tension). Otherwise, liquid can freeze in it and stop the pump 160 from working.

FIG. 6 is an end view of the cylindrical insulation member 174 which is provided with a zip tie 175 which is used to secure the insulation member 174 to the discharge conduit 172 and expansion fitting 177. The discharge assembly 170 is mounted in a waterproof foam block window assembly 180 as is shown in FIGS. 7-9 and 11.

The window closure assembly 80/180 for both embodiments of the invention is formed of a plurality of different sized foamed flexible foam insulation strips 82 and rigid foam blocks 84, two of which are provided with a cut insert member of flexible foam 86 allowing the slide door member to be held therein. The strips 82 and blocks 84 are glued or fastened together to hold discharge assembly 70 in place as schematically shown in FIGS. 1 and 2. If desired, the blocks and strips can be held together by mechanical means such as rods or pins or by a channeled frame member. The window assembly 80 is constructed for use in a window frame 90 and allows the top surface of window sill 92 as seen in FIGS. 1 and 2 to abut the same and hold the discharge assembly 70/170 and window assembly 80/180 in place with the window exerting containment pressure from the top. The discharge assembly 70 is placed through a slide door member 87 which is more clearly shown in FIGS. 8 and 9. The slide door member 87 is preferably constructed of plastic and has a sliding door 89 which allows the discharge assembly 70/170 to be placed through the opening and outside the building or residence into the atmosphere. The window insulation assembly 80 uses a plurality of flexible foam strips 82 and foam blocks 84 which are constructed together as shown in FIG. 9 to hold the slide door member 87 and discharge hose assembly 70/170 and insulation in the window 100 in a fixed position. If desired, the blocks 84 can be slotted to hold the slide door member.

The blocks 84 and strips 82 are meant to be placed inside the window frame 90 to span the window opening formed by the bottom of the window and sill of the window frame. If it is envisioned that the installation will be for a long period of time and not temporary, the blocks 84 and strips 82 can be fastened together with fast acting epoxy glue or with mechanical fasteners as previously described.

The foam blocks 84 are placed side by side to span the window opening and hold the door member 87 in place. Flexible strips 82 are placed on top of the blocks 84 and cover the top and the bottom of the door member 87 as seen in FIG. 9. The insulated discharge fitting is inserted through slide door 89 and any remaining space should be filled with insulation.

Alternatively, as shown in FIG. 11, the tops of the rigid blocks 84 can be provided with a slot 85 having a depth and width sufficient to form a channel 88 across the window opening. The channel 88 holds an adjustable rod 99 which has ends which are extended outward and locked to engage the side members of window frame 90 to hold the window insulation assembly mechanically in place. The flexible foam strips 82 are placed over adjustable rod 99, channel 88 and blocks 84 and is held in place by the bottom of the window.

The design of the assembly is such that it is able to expel water outside a building or residence without water freezing in the discharge assembly 70/170 between cycles. As water is pumped out of the reservoir housing by the condensate pump 60/160, it has substantial momentum. As the water goes through the hose or conduit 42, 142, it passes through the tee connector 62 as shown in FIG. 1 or single connector hose 172 as shown in FIG. 2 straight through the discharge hose and expansion pipe fitting 77.

The principles, preferred embodiments and modes of operation of the present invention have been described in the foregoing specification. However, the invention should not be construed as limited to the particular embodiments which have been described above. Instead, the embodiments described here should be regarded as illustrative rather than restrictive. Variations and changes may be made by others without departing from the scope of the present invention as defined by the following claims: 

What I claim is:
 1. A condensate overflow handling apparatus for air conditioning appliances having at least one drain pan comprising a condensate drain reservoir housing horizontally positioned at a first elevation; said reservoir housing having an inlet means that is adapted to be fluidly connected by conduit means to at least one drain pan of said air conditioning appliance positioned at a second elevation, positioned above said reservoir housing; a fluid level sensor mounted to said reservoir housing within said reservoir housing, said sensor sensing a predetermined fluid level within said reservoir housing; a pump connected to said reservoir housing which is activated by said fluid level sensor to pump fluid from said reservoir housing when said fluid level sensor senses that fluid has reached a predetermined level within said reservoir housing into an exit conduit fluidly connected to said reservoir housing; means to selectively drive said pump in response to the activation of said fluid level sensor; and a discharge assembly fluidly connected to said exit conduit, said discharge assembly comprising a discharge hose and a stepped expansion fitting mounted to said discharge hose.
 2. A condensate overflow handling apparatus as claimed in claim 1 wherein said pump is a diaphragm pump which is electrically driven.
 3. A condensate overflow handling apparatus as claimed in claim 1 wherein said reservoir housing has a planar bottom and defines a mounting structure for said pump.
 4. A condensate overflow handling apparatus as claimed in claim 1 wherein said discharge assembly includes an insulated cover member and a protective cover surrounding said insulated cover member.
 5. A condensate overflow handling apparatus as claimed in claim 1 wherein said exit conduit has a one way check valve mounted therein.
 6. A condensate overflow handling apparatus as claimed in claim 1 wherein said discharge assembly comprises a connector mechanism mounted to said discharge hose, a stepped expansion fitting mounted to said discharge hose and insulation means covering said discharge hose and expansion fitting.
 7. A condensate overflow handling apparatus as claimed in claim 6 wherein said insulation means comprises an inner cylindrical hollow insulation member and a cylindrical protective cover engaging and positioned around said cylindrical hollow insulated member.
 8. A condensate overflow handling apparatus as claimed in claim 6 including a second conduit mounted to said reservoir housing and said connector mechanism.
 9. A condensate overflow handling apparatus as claimed in claim 1 wherein said condensate overflow handling apparatus includes a window mounting assembly for said discharge assembly.
 10. A condensate overflow handling apparatus as claimed in claim 6 wherein said stepped expansion fitting is a stepped pipe having a larger diameter step chamber downstream from at least one smaller diameter step chamber.
 11. A condensate overflow handling apparatus as claimed in claim 9 wherein said window mounting assembly comprises a plurality of flexible strips, a plurality of rigid blocks, at least two of said blocks having a flexible insert portion which holds an exit mechanism, and means to hold said flexible strips, rigid blocks and exit mechanism together.
 12. A condensate overflow handling apparatus as claimed in claim 11 wherein said exit mechanism comprises a frame defining an opening and a slidable door mounted on said frame over said opening.
 13. A condensate overflow handling apparatus as claimed in claim 11 wherein said rigid blocks are slotted on an exterior surface to present a uniform channel across a window opening and a linear adjustment bar is mounted in said channel with the ends of said linear adjustment bar being mounted to a window frame.
 14. A condensate overflow handling apparatus for an air cooling apparatus comprising a condensate drain reservoir housing positioned at a first elevation; said reservoir housing having an inlet that is adapted to be fluidly connected to at least one drain pan of said air cooling apparatus positioned at a second elevation, positioned above said reservoir housing; a fluid level sensor mounted to said reservoir housing for sensing a fluid level within said reservoir housing; a pump connected to said reservoir housing which is activated by said fluid level sensor to pump fluid from said reservoir housing when said fluid level sensor senses that fluid has reached a predetermined level within said reservoir container into a discharge conduit; means to selectively drive said pump; and a discharge assembly mounted to said discharge conduit comprising at least one discharge hose and a stepped expansion fitting with a throughgoing bore defining a plurality of central chambers of different diameter sizes mounted to said at least one discharge hose.
 15. A condensate overflow handling apparatus as claimed in claim 14 including a window mounting assembly, said window mounting assembly comprising a plurality of rigid blocks, a plurality of said blocks having a flexible portion for holding an exit mechanism and a plurality of flexible strips; said blocks, said exit mechanism and said flexible strips being capable of being assembled together to close an open window space.
 16. A condensate overflow handling apparatus as claimed in claim 14 including a tee connector member mounted to said discharge conduit with said discharge assembly being mounted to tee connector member opposite said discharge conduit, said discharge assembly comprising a hose member mounted to said tee connector member, insulation means covering said discharge assembly.
 17. A condensate overflow handling apparatus as claimed in claim 14 wherein said stepped expansion fitting is a stepped pipe having larger diameter step downstream from at least one smaller diameter step.
 18. A kit for discharging condensate fluid from an air treatment device comprising a condensate drain reservoir housing horizontally positioned at a first elevation; said reservoir housing having an inlet that is adapted to be fluidly connected to at least one drain pan of said air treatment devices positioned at a second elevation, positioned above said reservoir housing; a fluid level sensor mounted to said reservoir housing within said reservoir housing, said sensor sensing a fluid level within said reservoir housing; a pump connected to said reservoir housing which is activated by said fluid level sensor to pump fluid from said reservoir housing when said fluid level sensor senses that fluid has reached a predetermined level within said reservoir housing; same pump being fluidly connected to an exit conduit; a distal end of said exit conduit being mounted to a fluid discharge assembly said discharge assembly comprising at least one discharge hose and a stepped expansion fitting having larger diameter chamber downstream from at least one smaller diameter chamber and a window mounting assembly, said window mounting assembly comprising a plurality of rigid blocks, at least two of said blocks being provided with a flexible portion holding an exit mechanism and a plurality of flexible strips, said window mounting assembly being adapted to fit into an open window space of a window frame and hold said discharge assembly.
 19. A kit as claimed in claim 18 wherein said discharge assembly comprises an exit discharge hose assembly mounted to a tee connector opposite said exit conduit which is mounted to said tee connector, said exit discharge hose assembly comprising a stepped expansion fitting mounted to said exit discharge hose and insulation means covering said exit discharge assembly.
 20. A kit as claimed in claim 18 wherein said rigid blocks are slotted on an exterior surface to present a uniform channel across on opening of a window frame and an adjustment bar is mounted in said channel and engages opposite sides of said window frame. 